ICD-10 Code I70.6 – Atherosclerosis of nonbiological bypass graft(s) of the extremities (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.6 – Atherosclerosis of nonbiological bypass graft(s) of the extremities
What it is
This code identifies atherosclerotic narrowing or blockage in a nonbiological bypass graft placed in an arm or leg. Use it when the graft itself, not the native artery, is the documented site of disease.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include reduced limb perfusion, claudication, rest pain, diminished pulses, or graft failure noted on imaging or vascular evaluation.
When to use this code
Use I70.6 when the provider documents atherosclerosis affecting a synthetic or other nonbiological bypass graft in an extremity. It may be supported by operative, imaging, or vascular follow-up notes describing graft stenosis, occlusion, or plaque-related disease. Check documentation if the graft material is not specified.
Do not use for
Do not use this code for atherosclerosis of the native artery, venous grafts, or biologic grafts unless the record clearly states a nonbiological graft. Check documentation for the exact vessel and graft type.
Coding tip
Confirm both the extremity site and nonbiological graft material before assigning I70.6.